
The \( \Delta C_{10}^{}\)  contributes to \(B_s^0 \rightarrow \mu ^+ \mu ^-\)  process.
Here we consider measurement of \(B_s^0 \rightarrow \mu ^+ \mu ^-\)  branching ratio [1]}, [2]}
\(BR(B_s^0 \rightarrow \mu ^+ \mu ^-)^{\rm exp} = (3.09^{+0.46 + 0.15}_{-0.43-0.11}) \times 10^{-9},\) 
